JPH03140543A - Woody fire door - Google Patents

Abstract

PURPOSE:To make it possible to form a door abundant in woody appearance by making of wood parts which come to the front and rear sides and ends, making of modified wood containing an insoluble and incombustible inorganic substance the inside part and incorporating modified wood pieces in a cut part on the surface. CONSTITUTION:An inorganic board 3 as heartwood is formed of rock wool, and facing single boards 1 of improved wood and plyboards 2 are overlapped on the front and rear of the inorganic board 3. The plyboards 2 of the improved wood are overlapped on the right and left ends, and simple shaped groove-like parts 51 are cut and formed on the front and rear boards After that, wood pieces 7 with complicated forms are fitted in the parts cut in the shape of a groove of laminated timber to form a woody fire door 9. According to the constitution, a solid and complicated design can be exhibited.

Description

[Detailed Description of the Invention] [Graduation Field of Use] This invention relates to a wooden fire door used in general houses, apartment complexes, public facilities, etc.

[Conventional technology]

Conventionally, most fire doors used in general houses, apartment complexes, public facilities, etc. are made of metal.

[Problem to be solved by the invention]

However, metal fire doors cannot provide the softness and warmth that wooden doors have, and there is a problem in that they impair their aesthetic appearance.

On the other hand, although wooden doors have the above-mentioned wood texture, they have problems such as being highly flammable, susceptible to discoloration and rot over time, damage from termites, mold growth, and dimensional changes (blackening). Furthermore, in the case of wooden doors, the design irregularities on the front and back surfaces are expressed using a router or the like, so there is a problem that the irregularities are not three-dimensional but only simple.

In view of the above circumstances, this invention aims to prevent discoloration and decay over time.
It is resistant to termite damage, mold growth, dimensional changes, etc., has excellent fire resistance, and has a three-dimensional and complex design unevenness on at least one of the front and back surfaces.
Our goal is to provide doors with a rich wood texture.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a wooden door in which at least the portions exposed on the front and back surfaces and end surfaces are made of wood, in which the wood constituting at least the portions exposed on the front and back surfaces and the end surfaces has an insoluble and noncombustible material inside. The surface of the modified wood, which is a modified wood containing an inorganic substance and which constitutes the part that appears on at least one of the front and back surfaces, is cut into a simple shape, and the cut part has a complex shape. This is a wood fire door characterized by incorporating modified wood pieces that have been processed.

An example of this is shown in the lower part of FIG. 1. The wooden fire door 9 according to the present invention has
Decorative veneer 1 made of modified wood and plywood 2 are stacked together as front and back materials, and plywood 2 made of modified wood is placed on the left and right end surfaces.
A simple-shaped groove portion 51 is cut into the front and back materials, and a modified wood piece 7 having a complicated shape is fitted into this to create a three-dimensional and complicated design. is expressed.

The method for producing the modified wood used in the wooden fire door according to the present invention is not particularly limited, but the method described below is preferred.

There are no particular limitations on the raw material wood for the above-mentioned modified wood.
Examples include raw wood logs, sawn timber products, sliced fn boards, and plywood. There are no particular limitations on the tree species, etc.

In addition, the insoluble and nonflammable inorganic substances (insoluble products) that are generated in wood and branched and fixed in the wood structure are not particularly limited, but include, for example, borates, phosphates, hydrogen phosphates, carbonates, etc. salts, sulfates, hydrogen sulfates, silicates,
Examples include various salts such as nitrates and hydroxides. Among these salts, for example, to give a specific example of carbonate, B
aCOx, Cacot, FecOz, MgC
0z, MnCO5, NiCot, ZnCCL, etc. Furthermore, for other salts, M g z(P
04)z, Cam(PO4)z, Ba5(PO
4)z, A I PO4, Zn5(P 04)z
, Mg5(BOs)z, CaSO4, BaS
Examples include Oa. Two or more of these may coexist in the wood. The insoluble, nonflammable inorganic substance within the wood may be fixed in the form of a reaction with wood cellulose.

Note that one type of insoluble nonflammable inorganic substance may contain two or more types of each of the cation and/or anion moieties described below.

In order to generate the above-mentioned insoluble non-combustible inorganic substance in the wood tissue, an aqueous solution prepared with a group of inorganic compounds constituting the cationic part of the insoluble non-combustible inorganic substance, that is, a cation-containing treatment liquid, and an anionic part. An aqueous solution prepared with another group of inorganic compounds, that is, an anion-containing treatment solution, is separately and sequentially impregnated into the wood structure. The cation-containing treatment liquid and the anion-containing treatment liquid can be impregnated alternately once or multiple times. When impregnating multiple times, the impregnation may be performed not alternately but continuously.

The cation moiety of the insoluble nonflammable inorganic substance includes, for example, Na, alkali such as carbon, carbon
a, Ba, M (3, alkaline earth metals such as Sr, Mn
, transition elements such as Ni and Cd, carbon group elements such as Si and Pb, Zn, and A#. Among these, C
a, Ba, MgZn and Al are preferred.

Examples of the anion portion of the insoluble nonflammable inorganic substance include B40=, Bow, PO, and C
Os, So, , No! ,OH,C1,Br,F,
Examples include (2) and OH. Among these, B.O.
8, PO4, COI, S04 and OH anions are preferred. Furthermore, among the anions, B, O, BO,
and PO4 due to the mechanism of promoting carbonization! lt
ffA effect, CO2 has an external combustion effect due to the mechanism of generation of nonflammable gas, and halogens such as CI, F, and Br have flame retardant effect due to the mechanism of inhibition of chain reaction in flaming combustion and generation of nonflammable gas. Each effect can be expected.

The above cations and anions are arbitrarily selected depending on the composition of the desired insoluble, nonflammable inorganic substance to be produced in the wood, and by dissolving the water-soluble inorganic substances containing each of these ions in water separately, the desired A cation-containing treatment liquid containing cations and an anion-containing treatment liquid containing desired anions are prepared. However, the combination of the cation and anion is appropriately selected so that an insoluble incombustible inorganic substance is likely to be generated within the wood tissue.

Inorganic substances that dissolve in water to produce the desired cations include MgC1z, MgBrz, Mg5O, -Hl
olMg (NO,)z -6H,08CaC1z
, Ca B rt , Ca (Now)z , Ba
C1・2H! 0XBaBrz, Ba (NOx)
z, AECIIs, A/Brx, AZz(SO4
)s, A1(No, ), -91(10, Z n
Examples include, but are not limited to, C(l).However, drugs other than halides have low solubility and are difficult to obtain at the required concentration; This is preferable because it is easy to obtain a concentration. Examples of inorganic substances that dissolve in water to produce the desired anion include pJ a 2 COs, (N1(
4) z COs , Hz SO4, Naz SO4, (
N114) f SO4, IIs PO4, Nag ti
po4, (NH4), opo4, H! 130. , N
Examples include aBO, NH4BO, etc., but the present invention is not limited thereto. Each of the following water-soluble inorganic substances may be used alone, or two or more of them may be used in combination in the treatment liquid as long as they do not react with each other and can form a uniform aqueous solution.

The inorganic substance impregnation treatment of the raw material wood using the above-mentioned cation-containing treatment liquid and anion-containing treatment liquid is performed, for example, as follows.

First, one of the two treatment liquids (the first liquid) is impregnated into the wood by immersing the raw material wood in the same treatment liquid. After impregnating with the first liquid, a treatment liquid (second liquid) containing ions of a partner that reacts with the first liquid is similarly impregnated to generate insoluble and nonflammable inorganic substances inside the wood.

Next, after the two liquids, the anion-containing treatment liquid and the cation-containing treatment liquid, are impregnated as described above, if necessary, a third liquid, a fourth liquid, etc. are prepared and repeated. The product layer may be densified by impregnation.

The cation/anion-containing treatment liquids used at this time may be of the same type or different types, and their concentrations are not particularly limited.

The impregnation treatment method and impregnation treatment time for each liquid are not particularly limited either (impregnation can be carried out under reduced pressure, or impregnation can be carried out by coating).

In addition, prior to the impregnation treatment with the first liquid, it is recommended that the raw material wood be subjected to a water saturation treatment so that the wood is sufficiently saturated with water. This is because the ions contained in the first liquid can be rapidly diffused using the water in the wood as a medium, and the processing time can be shortened. The water saturation treatment method is not particularly limited, but may be carried out by submerged wood storage, steaming, impregnation under reduced pressure, impregnation under pressure, or the like. In addition, the first
When the liquid is impregnated under reduced pressure, it is not necessarily necessary to carry out this water saturation treatment.

After the impregnation treatment, curing may be performed if necessary to promote the reaction for producing insoluble and nonflammable inorganic substances.

After the insoluble, nonflammable inorganic substance is generated and fixed in the wood by the above impregnation treatment, the surface of the wood is washed with water, if necessary, and dried to obtain a modified wood.

Through each of the above treatments, it is possible to efficiently obtain modified wood that is highly superior in antiseptic and insect repellent properties, dimensional stability, etc., and has Ti flammability. The obtained modified wood does not have a wood texture because inorganic substances are impregnated and fixed inside the wood.
In addition to the above performance, it also has an excellent appearance.

By partially or entirely using the thus obtained modified wood containing an insoluble non-combustible inorganic substance inside, it is possible to obtain a door with excellent fire resistance and a rich wooden feel according to the present invention. can. Its shape, processing, assembly method, etc. are not particularly limited.

In the wooden fire door according to the present invention, it is not necessary that all of the material is wood, and in order to create a woody feel, it is sufficient that at least the portions exposed on the front and back surfaces and end surfaces are made of wood,
There are no limitations on the species of the wood. Therefore, it is possible to use materials other than wood for the front and back surfaces of the door and the parts that are not exposed on the end surfaces. For example, a metal plate such as iron, a non-metallic inorganic board such as calcium silicate, rock wool, etc. can be used.

In addition, in the wooden fire door according to the present invention, all of the wood parts do not need to be modified wood containing insoluble and noncombustible inorganic substances inside, and at least the wood parts that are exposed on the front and back surfaces and end surfaces of the door. Since the wood constituting the part only needs to be the above-mentioned modified wood, in addition to the thick solid board made of modified wood, a thin veneer made of modified wood (such as a rotary veneer) is laminated as the outermost layer. Bonded plywood or the like can also be used in the same way. In that case, among the veneers that make up the plywood, the parts of the veneer that do not appear on the front, back, and end surfaces of the door should be untreated wood that does not contain any insoluble, noncombustible inorganic substances (the species, thickness, etc. are arbitrary). or conventional modified wood such as WPC. Of course, in the case of plywood,
It is also possible to use modified wood containing insoluble, non-combustible inorganic material in the entire veneer.

Furthermore, in the wooden fire door according to the present invention, the design irregularities on the front and/or back surfaces are three-dimensional and complex. For example, as shown in FIG. 1, the unevenness is caused by incorporating a piece of modified wood 7 processed into a complicated shape into a portion 51 cut into a simple shape on the front and back materials made of modified wood. It is formed by

Note that the present invention is not limited to wooden fire doors having the above-mentioned unevenness on both the front and back surfaces as shown in FIG.

For example, if necessary, one of the front and back surfaces of the door may have the above-mentioned unevenness, and the other surface may be flat without any unevenness, or one of the front and back surfaces of the door may be flat. may have the above-mentioned unevenness on one surface, and the unevenness on the other surface may be simply formed by Lukoo or the like. Further, in the wooden fire door according to the present invention, the shape of the cut portion on the front and/or back surface material is preferably a groove shape as shown in FIG. 1 in order to firmly fix the wood piece 7.
The shape is not limited to this, and depending on the shape of the unevenness on the front surface and/or back surface of the door, it may be selected as appropriate, such as a forest shape.

[For production]

The modified wood used in the wood fire door according to the present invention has the following characteristics because the voids such as conduits inside the wood, the inner cavity, and the wood cell walls are filled with insoluble, nonflammable, hard inorganic substances. have.

First, water resistance is improved because the voids are eliminated, preventing water from penetrating into the wood.

Second, the interior of the wood cell walls is occupied by the filler, producing a bulk effect, which makes it difficult for the wood itself to expand or contract. As a result, dimensional stability is improved and various mechanical strengths are also excellent.

Thirdly, the wood cells are reinforced, which increases the surface hardness, among other things.

Fourth, this insoluble, non-combustible inorganic material that fills the internal cavity of the wood does not provide nutrients for fungi or soil, so it prevents fungi and insects from entering the wood, and prevents rot and insects. Improve your sexuality.

Furthermore, in addition to the fact that non-combustible inorganic substances are combined with wood (inorganic substance coverage f2), depending on the type of inorganic substance, the effect of improving flame retardancy can also be obtained, making the wood highly flame-retardant. It turns out.

Here, once the insoluble and nonflammable inorganic substances are fixed in the wood structure, there is little possibility that they will be dissolved out of the wood thereafter, so there is little worry that their effects will be diminished.

Moreover, since this modified wood contains inorganic substances only inside it, the woody appearance is not impaired.

In the wooden fire door according to the present invention, at least the portions exposed on the front and back surfaces and the end surfaces are made of wood, and the wood constituting at least the portions of the wood portion that are exposed on the front and back surfaces and the end surfaces contains an insoluble and nonflammable inorganic material inside. It is a modified wood having each of the above characteristics including. Therefore, the wooden fire door according to the present invention is flame retardant (fireproof), antiseptic and
It has excellent insect repellency, dimensional stability, mechanical strength, water resistance, weather resistance, etc., and prevents discoloration and rot over time, termite damage, and mold growth.
In addition, the wood fire door according to the present invention has no dimensional change (blacking), is resistant to burning, is safe, and has a rich wood texture. The surface of the wood is cut into a simple shape, and a piece of modified wood processed into a complex shape is incorporated into the cut part, so there are no irregularities in the design of the front and back surfaces (both sides). However, it is three-dimensional and complex.Furthermore, modified wood with excellent dimensional stability is used for the built-in parts that form the unevenness of the design. The pieces don't come off easily, and from the outside it's hard to tell which parts are built in.

〔Example〕

Specific examples of the present invention are shown below, but the invention is not limited to the following examples.

Example 1 A wooden fire door 9 shown in the lower part of FIG. 1 was manufactured in the following manner.

■ Lauan and oak were used as raw material wood, and their veneers were impregnated with an insoluble, nonflammable inorganic substance. A veneer 1 for decorative front and back surfaces and a plywood 2 were produced from the obtained modified wood veneer.

■ As seen on the left side of Figure 1, plywood 2 was adhered to the front and back surfaces and end surfaces of an inorganic board 3 made of rock wool, and assembled.

(2) Parts of the front and back surfaces of the laminated wood 4 obtained in (2) were cut into grooves using a router.

(2) Separately, as seen on the right side of Figure 1, a decorative veneer 1 was laminated and adhered to the surface of the plywood 2.

(2) The surface of the laminated wood 6 obtained in (2) on the side where the decorative veneer was laminated was cut into a complicated shape.

■ A groove-cut portion 5I of the laminated wood 5 obtained in ■
Insert the complicated-shaped piece of wood 7 obtained in ■ into the
A wooden fire door 9 was obtained.

Examples 2 to 5 In Example 1, except that the materials shown in Table 1 were used as raw wood and inorganic board,
A wooden fire door was produced in the same manner as in Example 1.

Regarding the wooden fire doors obtained in Examples 1 to 5, flame retardancy (
Fire resistance) was investigated. The results are shown in Table 1.

Table 1 As shown in Table 1, it can be seen that the wooden fire doors of Examples 1 to 5 are all excellent in flame retardancy (fire resistance). In addition, the built-in parts on the front and back sides of the wooden fire door mentioned above are
It was not visible from the outside.

〔Effect of the invention〕

The wooden fire door according to the present invention has a rich wood texture because at least the portions exposed on the front and back surfaces and the end surfaces are made of wood. Water resistance, weather resistance,
Because it is a modified wood with excellent antiseptic and insect repellent properties, dimensional stability, mechanical strength, and flame retardancy (fire retardant), there is no rotting, mold growth, termite damage, dimensional changes, or curling, etc. This is an excellent fire door that maintains a good wood texture over a period of time.

Further, since the wooden fire door according to the present invention has the above-mentioned characteristics, it can be used in hot and humid environments such as bathrooms and outdoors where it is exposed to wind and rain. The surface of the modified wood constituting the portion that appears on at least one side of the surface is cut into a simple shape, and the cut portion incorporates a piece of modified wood processed into a complex shape. The design irregularities on at least one side of the surface are three-dimensional and complex. Furthermore, since a modified wood piece with excellent dimensional stability is used for the built-in part that forms the unevenness in the design, this modified wood piece is fitted into the groove-cut part. If the modified wood pieces are inserted into the wood, the modified wood pieces will not easily come off and the incorporated parts will not be visible from the outside. 8... Part where the modified wood pieces with complex shapes are incorporated. 9... Wood quality. fire door

Claims (1)

[Scope of Claims] 1. In a wooden door in which at least the portions exposed on the front and back surfaces and end surfaces are made of wood, the wood constituting at least the portions of the wood portion that are exposed on the front and back surfaces and end surfaces is modified to contain an insoluble non-combustible inorganic substance inside. A piece of modified wood that is made of quality wood, and the surface of the modified wood constituting the portion that appears on at least one of the front and back surfaces is cut into a simple shape, and the cut portion is processed into a complicated shape. A wooden fire door characterized by a built-in. 2. The wooden fire door according to claim 1, which has a core material other than wood. 3. The wooden fire door according to claim 1 or 2, wherein the simple shape is a groove, and a modified wood piece processed into a complicated shape is fitted into the groove.